EP0693425A2 - Handhabung von teilweise fertiggestellten Behältern - Google Patents

Handhabung von teilweise fertiggestellten Behältern Download PDF

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Publication number
EP0693425A2
EP0693425A2 EP95304996A EP95304996A EP0693425A2 EP 0693425 A2 EP0693425 A2 EP 0693425A2 EP 95304996 A EP95304996 A EP 95304996A EP 95304996 A EP95304996 A EP 95304996A EP 0693425 A2 EP0693425 A2 EP 0693425A2
Authority
EP
European Patent Office
Prior art keywords
skillet
skillets
stack
devices
conveyor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP95304996A
Other languages
English (en)
French (fr)
Other versions
EP0693425A3 (de
Inventor
Philip Gordon Haddow
Roderick Leslie Mitchell
David Robert Seaward
Geoffrey William Vernon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unilever PLC
Unilever NV
Original Assignee
Unilever PLC
Unilever NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Unilever PLC, Unilever NV filed Critical Unilever PLC
Priority to EP95304996A priority Critical patent/EP0693425A3/de
Publication of EP0693425A2 publication Critical patent/EP0693425A2/de
Publication of EP0693425A3 publication Critical patent/EP0693425A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • B65B43/30—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by grippers engaging opposed walls, e.g. suction-operated
    • B65B43/305—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by grippers engaging opposed walls, e.g. suction-operated specially adapted for boxes, cartons or carton blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/76—Opening and distending flattened articles
    • B31B50/80—Pneumatically

Definitions

  • This invention relates to apparatus for use in container erection installations, for handling partly completed containers in the form of skillets, and to methods of handling partly formed containers.
  • Polygonal containers eg. made from paper or board, are commonly made by cutting blanks from the sheet material, with impressed fold lines.
  • the blanks are erected by folding the main body to form a polygonal tube which is closed by a glued seam along one longitudinal edge.
  • This tubular form of blank is known as a skillet.
  • integral flaps and tabs at both ends of the blank are folded over and glued as necessary to close the ends of the container. Before the container is fully closed, it may be filled with its intended contents.
  • the containers are to be machine-filled, they may be supplied partly formed to the filling installation, as flattened tubular blanks or skillets.
  • EP 461084A describes an apparatus in which flattened tubular blanks or skillets are drawn from a reservoir stack by a swinging arm to be placed on a conveyor belt.
  • the skillets are partly opened by a stationary guide as they move between reservoir and container and in order to place them at the required locations the conveyor belt is stationary during the transfer movement.
  • temporary holding means shapes the tubular form further.
  • the skillet achieves its final rectangular tubular form only when it reaches a second conveyor belt opposite the first belt, as it is brought between locating means on both belts.
  • DE 3010891 describes another skillet supply arrangement in which a swinging arm moves the skillets from reservoir stack to a conveyor.
  • a suction device is articulated on the arm and moves onto the skillet drawn from the stack to begin to open the skillet as it moves towards the conveyor. In order to do this it is required to pivot on the arm about a centre some distance from the skillet and a large angular movement of the device will therefore either distort the skillet or will result in device slipping and its suction grip being lost.
  • the arrangement described in fact also proposes the use of a stationary guide to complete the opening of the skillets, which makes a large angular movement of the suction device unnecessary.
  • an apparatus comprising means for transferring successive flat skillets from a stack to conveying means, said transfer means being provided with respective devices for gripping peripherally spaced regions of each skillet to open the skillet to at least substantially the tubular cross-sectional form of the container in the course of transferring the skillets to the conveyor, the transfer means comprising pivot means for relative displacement of said devices about a common pivot axis that is substantially coincident with a fold line of each skillet.
  • apparatus comprising means for transferring successive flat skillets from a stack to a conveyor while opening said skillets to at least substantially their final tubular cross-sectional form, said conveyor providing a generally linear travel direction for the opened skillets transferred thereto, said transfer means being provided with respective devices for gripping peripherally spaced regions of each skillet for the opening movement, said transfer means defining a travel path for the skillets moving through an angle, said path adjacent the skillet stack running in a plane substantially parallel to the conveyor travel direction and, adjacent the conveyor, running substantially perpendicular to the conveyor travel direction.
  • the skillet stack can thus be placed so that its axis extends in a plane generally parallel to the conveyor track.
  • the stack can have a minimum lateral projection from the plan area of the conveyor so that it does not require substantial additional floor space.
  • this configuration facilitates an arrangement of the transfer means so that they remain on the outer side of the opened skillets relative to the conveyor, so allowing the transfer means to be retracted immediately a skillet has been placed in the conveyor.
  • Fig. 1 illustrates a conveyor 2 which has flight bars 4,6 projecting perpendicularly from respective continuous bands 8 running around end pulleys 10, one end only of the conveyor being shown.
  • the flight bars are arranged in groups of at least two bars to grip skillets or containers by their front and rear faces, the number of flight bars in a group and their form depending on the shape of the containers. For example, for tall rectangular cross-section containers there may be three flight bars in each group with one leading bar 4 and two trailing bars 6 disposed at levels above and below the leading bar 4 so as to hold a container stably.
  • Skillets S that is to say carton blanks which have already been folded over and had their opposite side edges glued together ready to be opened in the form of a tube, in this example of rectangular cross-section, are held in flattened form in a reservoir stack 12.
  • the flat skillets are removed successively and are opened into their tubular form as they are transferred to the conveyor to be entrained by the flight bars 4,6.
  • Fig. 1 illustrates the skillets S at successive stages of the transfer process.
  • the transfer means comprises two vertical columns 22,24 provided with suction cups 26 (Fig. 2) at their upper ends connectable to a vacuum line (not shown) through conduits (not shown) in the columns.
  • the first column 22 carries a pair of vertically spaced suction cups 26 and the second column 24 carries a single suction cup 26 at a height between those of the suction cups on the first column 22.
  • the columns are mounted on respective crank arms 32,34 which are pivoted in a casing 36 which houses part of the mechanism controlling the movement of the columns.
  • the casing is itself mounted on a vertical shaft 38 (Fig. 3) rotatably held in a bracket 40 secured to the conveyor base frame.
  • the shaft 38 is rotated by an electric motor 42 supported on the bracket 40 and the casing is fixed to the shaft by a key 44 to pivot with it.
  • a meshing second gear wheel 48 is rotatably mounted in the casing 36 by a shaft 50 on the upper end of which is a planet carrier 52 of an epicyclic gear.
  • the epicyclic gear further comprises a series of three planet wheels 54 spaced around the carrier 52 engaging a ring gear 56 fixed to the casing.
  • the supporting shaft of one of the planet wheels comprises a crank 58 to which is pinned one end of a link 60.
  • the other end of the link 60 is pinned to a gearwheel 62 eccentrically to its rotary axis.
  • the gearwheel 62 is first of a train of three gearwheels 62,64,66 the last of which is secured to a pivot shaft 68 journalled in the casing and carrying the crank arm 34.
  • crank arm 32 is supported on the lower end of the pivot shaft 68 by bearings 70 so that the shaft 68 defines the common vertical axis 70' about which the two crank arms 32,34 pivot separately.
  • the crank arm 32 has a second limb 72 which is connected through a link 74 to the bracket 40.
  • the crank arm 32, casing 36 and link 74 thereby form with the stationary bracket 40 a four-bar linkage which is driven by the motor 42 pivoting the casing about the motor shaft axis.
  • the same pivoting of the motor shaft 38 and casing 36 causes rotation of the second gear 48 as it travels around the fixed first gear 40 and so causes the planet carrier 52 to rotate.
  • the planet wheels 54 are engaged with the ring gear 56 fixed to the casing, they are rotated by the movement of their carrier.
  • the crank 58 is driven by a combination of the motions of the carrier 52 and its planet wheel 54, so rotating the gear train 62,64,66 to pivot the crank arm 34.
  • crank arms 32,34 carry out coordinated movements generated by the rotation of the motor shaft through an angle of some 100° to displace the columns 22,24 between the skillet stack and the conveyor.
  • the movement of the first arm as the cycle begins takes place with the pivot centres of the casing 36 and the crank arm 32 nearly in line, so that there is little rotation of the column 22 about the axis 70' as it moves away from the stack, but the presence of the link 74 soon generates an anti-clockwise pivoting about the axis 70' as seen in Fig. 4.
  • the gear drive to the second crank arm 34 is also operative as the motor shaft begins to rotate but the initial orientation of the link 60 is such that there is little rotation transmitted from the planet crank 58 to pivot the second crank arm and that occurs in the reverse sense, keeping the column 24 clear of the skillet stack.
  • the delivery position of the skillets is immediately adjacent the return pulleys at the conveyor entry end. Because the flight bars are fixed perpendicular to their conveyor bands, the leading and trailing bars of a group travelling around this region diverge from each other with the curvature of the conveyor path. The opened skillet is delivered between the flight bars while they are still in divergent positions so that their wider spacing leaves a clearance for the skillet, as can be seen in Fig. 1. With the next step of the conveyor movement the trailing flight bars capture the skillets as they become parallel to the forward bar and the skillet is gripped by the group of bars.
  • the skillet is now held vertically by the flight bars as it is progressed by the conveyor through a series of operating stations (not shown) where the carton is completed and filled.
  • the vacuum is cut off from the suction cups 26 and the movement of the motor 42 is reversed to begin the return movement.
  • the reservoir stack has meanwhile been advanced forwards by an indexing mechanism (not shown) to present a further skillet so that the cycle can be repeated.
  • the flight bars have hook-like projections 4a,6a at their free ends which provide engagements for a side face of the skillets.
  • a fixed rail 80 forms a guide for the opposite side of the skillets so that they are fully located as they travel along the conveyor. This, with the parallelism of the opposed faces of the forward and rearward flight bars, ensures that the skillets are held in their fully opened rectangular plan form.
  • the illustrated example can be modified in many ways within the scope of the invention. For example, although it is described how the opened skillets are gripped by the conveyor holding members after they have been placed between the holding members in a stationary phase of the conveyor, it is possible to arrange that the skillets are transferred while the conveyor is in continuous movement, which can assist in achieving relatively high throughput rates.
  • the relative movements of the flight bars to grip the containers is not necessarily dependent on the form of the conveyor path, as dictated by the return pulleys 10 in the apparatus illustrated. It is possible, as another example, to provide cam means to generate these movements so that they can occur along a linear section of the conveyor path.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Making Paper Articles (AREA)
EP95304996A 1994-07-19 1995-07-18 Handhabung von teilweise fertiggestellten Behältern Withdrawn EP0693425A3 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP95304996A EP0693425A3 (de) 1994-07-19 1995-07-18 Handhabung von teilweise fertiggestellten Behältern

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP94305288 1994-07-19
EP94305288 1994-07-19
EP95304996A EP0693425A3 (de) 1994-07-19 1995-07-18 Handhabung von teilweise fertiggestellten Behältern

Publications (2)

Publication Number Publication Date
EP0693425A2 true EP0693425A2 (de) 1996-01-24
EP0693425A3 EP0693425A3 (de) 1996-04-03

Family

ID=26137195

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95304996A Withdrawn EP0693425A3 (de) 1994-07-19 1995-07-18 Handhabung von teilweise fertiggestellten Behältern

Country Status (1)

Country Link
EP (1) EP0693425A3 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998057857A1 (en) * 1997-06-18 1998-12-23 Bfb S.P.A. Box opening and filling machine
ITBO20110486A1 (it) * 2011-08-04 2013-02-05 Morassut Barbara Metodo e apparecchiatura per l'alimentazione di fustellati tubolari a una macchina confezionatrice
EP3409458A4 (de) * 2016-01-25 2019-01-16 Ishida Co., Ltd. Schachtelöffnungsvorrichtung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3242827A (en) * 1963-07-10 1966-03-29 Fibreboard Paper Products Corp Apparatus and method for opening cartons
DE3010891A1 (de) * 1980-03-21 1981-10-01 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zum entnehmen, oeffnen und aufrichten von faltschachtelzuschnitten
FR2493806B1 (fr) * 1980-11-07 1985-08-23 Thimon Ets Procede et machine pour constituer un contenant de forme generale parallelepipedique a partir d'une forme aplatie et introduite dans le contenant un contenu
DE3941867A1 (de) * 1989-12-19 1991-06-20 Bosch Gmbh Robert Vorrichtung zum ueberfuehren flacher gegenstaende, insbesondere faltschachteln

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998057857A1 (en) * 1997-06-18 1998-12-23 Bfb S.P.A. Box opening and filling machine
US6266948B1 (en) * 1997-06-18 2001-07-31 Bfb S.P.A. Box opening and filling machine
ITBO20110486A1 (it) * 2011-08-04 2013-02-05 Morassut Barbara Metodo e apparecchiatura per l'alimentazione di fustellati tubolari a una macchina confezionatrice
WO2013017640A1 (en) * 2011-08-04 2013-02-07 I.M.A. Industria Macchine Automatiche S.P.A. Method and apparatus for feeding tubular blanks to a packaging machine
CN103717496A (zh) * 2011-08-04 2014-04-09 I.M.A.工业机械自动装置股份公司 用于向包装机器馈送管状空包的方法和设备
JP2014521565A (ja) * 2011-08-04 2014-08-28 アイ．エム．エー．インダストリア マッシーネ アウトマティシェ エス．ピー．エー． 包装機械にチューブ状ブランク材を供給する装置と方法
US9669954B2 (en) 2011-08-04 2017-06-06 I.M.A. Industria Macchine Automatiche S.P.A. Method and apparatus for feeding tubular blanks to a packaging machine
EP3409458A4 (de) * 2016-01-25 2019-01-16 Ishida Co., Ltd. Schachtelöffnungsvorrichtung
US10472108B2 (en) 2016-01-25 2019-11-12 Ishida Co., Ltd. Box-opening device

Also Published As

Publication number Publication date
EP0693425A3 (de) 1996-04-03

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